ATE230454T1 - DOUBLE SCREEN FORMER - Google Patents

DOUBLE SCREEN FORMER

Info

Publication number
ATE230454T1
ATE230454T1 AT99101848T AT99101848T ATE230454T1 AT E230454 T1 ATE230454 T1 AT E230454T1 AT 99101848 T AT99101848 T AT 99101848T AT 99101848 T AT99101848 T AT 99101848T AT E230454 T1 ATE230454 T1 AT E230454T1
Authority
AT
Austria
Prior art keywords
fourdrinier
support
underpressure
section
swivel
Prior art date
Application number
AT99101848T
Other languages
German (de)
Inventor
Johann Moser
Original Assignee
Voith Paper Patent Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Paper Patent Gmbh filed Critical Voith Paper Patent Gmbh
Application granted granted Critical
Publication of ATE230454T1 publication Critical patent/ATE230454T1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type

Abstract

The double-fourdrinier section of a papermaking machine, has a lateral support bar (9) which applies an underpressure to the outer fourdrinier (11). The support bar (9) has a sliding surface (9a) in contact with the outer fourdrinier (11), followed by a foil surface (9b) in the direction of fourdrinier travel, which diverges from the fourdrinier surface to create an underpressure. The sliding surface (9a) is pressed against the outer fourdrinier (11) with a pliable pressure. As seen in cross section through the bar (9), the downstream section is supported by a swivel (7), while the upstream zone is held by a pliable setting unit such as a pneumatic hose (6). The gap can be varied between the swivel (7) and the outer fourdrinier (11), and the angle between the foil surface (9b) and the outer fourdrinier (11) can be set to give the required level of underpressure. The position of the support system can be varied parallel to the direction of fourdrinier travel, as a support shoe or suction box and the like which is pressed pliably against the outer fourdrinier. The support unit (9) is in the loop of the lower fourdrinier (11) and the roller (14) to form the wet pulp web within the loop of the upper fourdrinier (12). The two fourdriniers (11,12) can run upwards, from below, between the web forming roller (14) and the support (9), or downwards from above.
AT99101848T 1998-06-25 1999-01-28 DOUBLE SCREEN FORMER ATE230454T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19828237A DE19828237A1 (en) 1998-06-25 1998-06-25 Double-fourdrinier section at a papermaking machine

Publications (1)

Publication Number Publication Date
ATE230454T1 true ATE230454T1 (en) 2003-01-15

Family

ID=7871926

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99101848T ATE230454T1 (en) 1998-06-25 1999-01-28 DOUBLE SCREEN FORMER

Country Status (4)

Country Link
US (1) US6254727B1 (en)
EP (1) EP0967323B1 (en)
AT (1) ATE230454T1 (en)
DE (2) DE19828237A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343914A1 (en) * 2003-09-19 2005-05-04 Voith Paper Patent Gmbh Process and assembly to de-water fibrous suspension of paper or cardboard employs a top water skimmer with lower suction at outer margins
DE102004000068A1 (en) * 2004-12-30 2006-07-13 Voith Paper Patent Gmbh Dewatering device of a twin-wire former of a machine for producing a fibrous web
FI20065142L (en) * 2006-02-28 2007-08-29 Metso Paper Inc Adjusting the distance of the suction box from the counter roller
FI120796B (en) * 2006-03-31 2010-03-15 Metso Paper Inc Adjusting the suction box distance from the back roll
JP7361019B2 (en) * 2017-09-01 2023-10-13 ストラ エンソ オーワイジェイ Paperboard manufacturing methods, paperboard, and corrugated board

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH601556A5 (en) * 1975-10-03 1978-07-14 Escher Wyss Gmbh
DE3815316C2 (en) * 1988-05-05 1996-02-01 Voith Sulzer Papiermasch Gmbh Device for dewatering on a twin wire former
DE4026953C2 (en) * 1990-01-26 1995-11-30 Escher Wyss Gmbh Dewatering device and method for dewatering on a twin wire former
DE9105328U1 (en) * 1991-04-30 1991-07-04 J.M. Voith Gmbh, 7920 Heidenheim, De
US5573643A (en) 1992-01-17 1996-11-12 Valmet Corporation Twin wire web former in a paper machine
FI920228A0 (en) 1992-01-17 1992-01-17 Valmet Paper Machinery Inc BANFORMNINGSPARTI FOER PAPPERSMASKIN.
DE4328024A1 (en) * 1993-08-20 1995-02-23 Voith Gmbh J M Twin-wire sheet former
FI112509B (en) * 1994-06-15 2003-12-15 Metso Paper Inc Paper machine other formers
DE19652485A1 (en) * 1996-12-17 1998-06-18 Voith Sulzer Papiermasch Gmbh Paper-making machine fourdrinier section

Also Published As

Publication number Publication date
EP0967323A2 (en) 1999-12-29
EP0967323B1 (en) 2003-01-02
DE19828237A1 (en) 1999-12-30
EP0967323A3 (en) 2000-01-05
DE59903896D1 (en) 2003-02-06
US6254727B1 (en) 2001-07-03

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Legal Events

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